(1981). NPC self-sustaining by 1985. Bulletin Today.
Chicago Style aipamena"NPC Self-sustaining by 1985." Bulletin Today 1981.
MLA aipamena"NPC Self-sustaining by 1985." Bulletin Today, 1981.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.
APA aipamena